Methods and Systems for Specification File Based Delivery of an Immersive Virtual Reality Experience

ABSTRACT

An exemplary virtual reality media provider system (“system”) receives, from a media player device (“device”) by way of a network, a request for the device to provide a user with an immersive virtual reality experience. The system transmits, to the device by way of the network and in response to the request, a specification file corresponding to the immersive virtual reality experience. The specification file comprises data that defines a plurality of elements included in the immersive virtual reality experience, associates an event with a particular element included in the plurality of elements, and associates a behavior with the event that is associated with the particular element, the behavior configured to be performed with respect to the particular element in response to an occurrence of the event within the immersive virtual reality experience. The device uses the specification file to provide the user with the immersive virtual reality experience.

BACKGROUND INFORMATION

Advances in computing and networking technology have made new forms ofmedia content possible. For example, virtual reality media content isavailable that may immerse viewers (or “users”) into interactive virtualreality worlds that the users may experience by way of a media playerdevice by directing their attention to any of a variety of things beingpresented in the immersive virtual reality world at the same time. Forexample, at any time during the presentation of the virtual realitymedia content, a user experiencing the virtual reality media content maylook around the immersive virtual reality world in any direction withrespect to both a horizontal dimension (e.g., forward, backward, left,right, etc.) as well as a vertical dimension (e.g., up, down, etc.),giving the user a sense that he or she is actually present in andexperiencing the immersive virtual reality world.

For a user to experience an immersive virtual reality world by way of amedia player device, the media player device may communicate with aplurality of remotely located systems (e.g., servers, computing systemsimplementing micro applications, etc.) by way of a network. For example,the media player device may acquire various components (e.g., 360 degreevirtual reality video, images, text, advertisement targets, etc.) of theimmersive virtual reality world from different remotely located systemsby way of the network and then combine the components in a manner thatprovides a seamless immersive virtual reality experience for the user.

To facilitate this seamless virtual reality experience for the user, avirtual reality media provider system (e.g., a server operated by avirtual reality service provider) may provide the media player devicewith instructions that specify how the media player device is to acquireand combine the components of the immersive virtual reality world fromthe various remotely located systems by way of the network. Becausethere are many types of media player devices that operate on manydifferent platforms (e.g., iOS, Android, Windows, webOS, etc.), it maybe difficult, cumbersome, and/or costly for the virtual reality mediaprovider system to maintain and provide different versions of theinstructions that are platform-specific so that each of the differenttypes of media player devices operating on the different platforms caninterpret the instructions and provide the immersive virtual realityexperience to their respective users.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings illustrate various embodiments and are a partof the specification. The illustrated embodiments are merely examplesand do not limit the scope of the disclosure. Throughout the drawings,identical or similar reference numbers designate identical or similarelements.

FIG. 1 illustrates an exemplary configuration in which exemplaryimplementations of a 360-degree camera, a virtual reality media backendserver, and one or more media player devices are described according toprinciples described herein.

FIG. 2 illustrates an exemplary immersive virtual reality experienceaccording to principles described herein.

FIG. 3 shows exemplary media player devices configured to facilitateexperiencing of an immersive virtual reality experience according toprinciples described herein.

FIG. 4 illustrates an exemplary virtual reality media provider systemaccording to principles described herein.

FIG. 5 illustrates an exemplary media player device according toprinciples described herein.

FIG. 6 shows exemplary components of a specification file according toprinciples described herein.

FIGS. 7-11 show exemplary code implementations of portions of aspecification file according to principles described herein.

FIG. 12 illustrates an exemplary network-based virtual reality mediadelivery configuration according to principles described herein.

FIG. 13 illustrates an exemplary method for specification file baseddelivery of an immersive virtual reality experience according toprinciples described herein.

FIG. 14 illustrates another exemplary method for specification filebased delivery of an immersive virtual reality experience according toprinciples described herein.

FIG. 15 illustrates an exemplary computing device according toprinciples described herein.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Methods and systems for specification file based delivery of animmersive virtual reality experience to a user by way of a media playerdevice are described herein. As will be described in more detail below,a virtual reality media provider system may receive, from a media playerdevice by way of a network, a request for the media player device toprovide a user with an immersive virtual reality experience. In responseto the request, the virtual reality media provider system may transmit aspecification file corresponding to the immersive virtual realityexperience to the media player device by way of the network. The mediaplayer device may use the specification file to provide the user withthe immersive virtual reality experience, as will be explained in moredetail below.

As used herein, an “immersive virtual reality experience” refers to apresentation of virtual reality content within an immersive virtualreality world to a user by way of a media player device. The immersivevirtual reality experience may be fully immersive in the sense that theuser may not be presented with any image of the real world in which theuser is located while the user is experiencing the immersive virtualreality experience, in contrast to certain “augmented reality”technologies. However, while real-world scenery directly surrounding theuser may not be presented together with the immersive virtual realityexperience, the immersive virtual reality experience may, in certainexamples, be generated based on data (e.g., image and/or audio data)representative of camera-captured real-world scenery rather thananimated or computer-generated scenery of imaginary worlds such as thosecommonly generated for video games, animated entertainment programs, andso forth. For example, as will be described in more detail below,camera-captured real-world scenery may include real-world places (e.g.,city streets, buildings, landscapes, etc.), real-world events (e.g.,sporting events, large celebrations such as New Year's Eve or MardiGras, etc.), fictionalized live action entertainment (e.g., virtualreality television shows, virtual reality movies, etc.), and so forth.

A “specification file” that corresponds to an immersive virtual realityexperience refers to data that instructs a media player device how toprovide the immersive virtual reality experience to a user (e.g., bypresenting virtual reality content within an immersive virtual realityworld for experiencing by the user).

For example, the specification file may include data that defines aplurality of elements (e.g., 360 degree virtual reality video,three-dimensional (“3D”) objects, two-dimensional (“2D”) images, text,advertisement targets, etc.) included in the immersive virtual realityexperience. The specification file may define a particular element byproviding a link for use by the media player device in acquiring, by wayof the network, the element while providing the user with the immersivevirtual reality experience. The specification file may further define anelement in a variety of other ways, as will be described below.

The specification file may further include data that associates one ormore events with one or more of the elements defined in thespecification file. An “event” may be defined by one or more conditionsthat, when satisfied, indicate an occurrence of the event. Toillustrate, an event labeled “OnClickEvent” and associated with aparticular element may be defined by a condition that specifies that theparticular element must be selected (e.g., clicked on) in order for theevent to occur. Various exemplary events that may be specified withinthe specification file will be described herein.

The specification file may further include data that associates one ormore behaviors with one or more events specified in the specificationfile. A “behavior” associated with an event that is associated with aparticular element may refer to a set of one or more definedinstructions that the media player device performs with respect to theparticular element in response to an occurrence of the behavior'sassociated event. To illustrate, a behavior labeled “ShowAd” may specifythat the media player device is to show a particular advertisementwithin the immersive virtual reality experience in response to aparticular element being selected by the user. Various exemplarybehaviors that may be specified within the specification file will bedescribed herein.

The methods and systems described herein may facilitate a seamless,efficient, and universal immersive virtual reality experience for usersof media player devices. For example, by utilizing a specification fileto instruct a media player device how to provide an immersive virtualreality experience to a user, the methods and systems described hereinmay provide a standard for virtual reality content creators in order toensure that the virtual reality content creators create virtual realitycontent that complies with codec capabilities of the various mediaplayer devices that will be used to present the virtual reality content.Moreover, the specification file may be configured to be device platformagnostic. In other words, the specification file may adhere to a datainput format that is readable by a plurality of different media playerdevices operating within a plurality of different platforms. In thismanner, the same specification file may be used to instruct each of thedifferent media player devices operating within the plurality ofdifferent platforms how to provide the immersive virtual realityexperience to a user.

Various embodiments will now be described in more detail with referenceto the figures. The disclosed methods and systems may provide one ormore of the benefits mentioned above and/or various additional and/oralternative benefits that will be made apparent herein.

FIG. 1 illustrates an exemplary configuration 100 in which exemplaryembodiments of a 360-degree camera, a virtual reality media backendserver, and one or more media player devices operate to facilitateprediction-based methods and systems for efficient distribution ofvirtual reality media content. As shown in FIG. 1, a 360-degree camera102 (“camera 102”) may capture and/or generate a 360-degree image ofreal-world scenery 104 around a center point corresponding to camera102. For example, camera 102 may capture a plurality of images from eachof a plurality of segment capture cameras 106 built into or otherwiseassociated with camera 102, and may generate the 360-degree image ofreal-world scenery 104 by combining the plurality of images captured bysegment-capture cameras 106.

Camera 102 may capture data representative of 360-degree images ofreal-world scenery 104 and transmit the data to a virtual reality mediabackend server 108 (“backend server 108”) by way of a network 110. Afterpreparing and/or processing the data representative of the 360-degreeimages to generate an immersive virtual reality world based on the360-degree images, backend server 108 may transmit data representativeof the immersive virtual reality world to one or more media playerdevices 112 (e.g., media player devices 112-1 through 112-n), and users114 (e.g., users 114-1 through 114-n) may experience the immersivevirtual reality world by way of media player devices 112. Each of theelements of configuration 100 will now be described in detail.

Camera 102 may be set up and/or operated by a virtual reality contentcreator and may include any type of camera that is configured to capturedata representative of a 360-degree image of real-world scenery 104around a center point corresponding to camera 102. As used herein, a360-degree image is any still or video image that depicts thesurroundings (e.g., real-world scenery 104) of a center point (e.g., acenter point associated with the location of camera 102) on all sidesalong at least one dimension. For example, one type of 360-degree imagemay include a panoramic image that depicts a complete 360-degree by45-degree ring around a center point corresponding to a camera (e.g.,camera 102). Another type of 360-degree image may include a sphericalimage that depicts not only the ring around the center point, but anentire 360-degree by 180-degree sphere surrounding the center point onall sides. In certain examples, a 360-degree image may be based on anon-circular geometric structure. For example, certain 360-degree imagesmay be based on cubes, rectangular prisms, pyramids, and/or othergeometric structures that may serve a particular implementation, ratherthan being based on spheres.

Camera 102 may be configured to capture the data representative of the360-degree image of real-world scenery 104 in any way that may serve aparticular implementation. For example, as shown in FIG. 1, camera 102may capture various segments of real-world scenery 104 using segmentcapture cameras 106, which may each capture an image of a single segmentof real- world scenery 104 that may be combined (e.g., stitchedtogether) with other segments to generate the 360-degree image ofreal-world scenery 104. In certain examples, segment capture cameras 106may each represent a single camera unit (e.g., including a lens andsuitable image capture hardware) built into a single 360-degree cameraconfigured to capture 360-degree images. In other examples, camera 102may include an array of segment capture cameras 106 that are each asingle, standalone camera configured to capture standard images (e.g.,images depicting less than a 360-degree view) that may later be combinedto form the 360-degree image. In yet other examples, camera 102 mayinclude one or more “fish-eye” lenses configured to capture a verywide-angle image (e.g., a spherical image or a semi-spherical image)that can be used as the 360-degree image or processed to generate the360-degree image. Alternatively, camera 102 may include a single,standard camera that captures and/or combines a plurality of stillimages of real-world scenery 104 taken at different points in time(e.g., using a “panorama mode” of the camera or a similar feature) tocapture still 360-degree images. In certain examples, camera 102 mayinclude one or more stereoscopic cameras. Camera 102 may also use anycombination of the 360-degree image capture techniques described aboveor any other capture techniques that may serve a particularimplementation.

Subsequent to capturing raw image data representative of real-worldscenery 104, camera 102 may generate from the raw image data a360-degree image of real-world scenery 104. For example, camera 102 maybe configured to automatically process the raw image data (e.g., bycombining a plurality of images captured by segment capture cameras 106,by processing images captured by a fish-eye lens, etc.) to form the360-degree image, and then may transmit data representative of the360-degree image to backend server 108. Alternatively, camera 102 may beconfigured to transmit the raw image data directly to backend server108, and any processing and/or combining of the raw image data may beperformed within backend server 108.

Camera 102 may capture any real-world scenery 104 that may serve aparticular embodiment. For example, real-world scenery 104 may includeany indoor or outdoor real-world location such as the streets of a city,a museum, a scenic landscape, a satellite orbiting and looking down uponthe Earth, the surface of another planet, or the like. Real-worldscenery 104 may further include certain events such as a stock car race,a football game or other sporting event, a large-scale party such as NewYear's Eve on Times Square in New York City, or other events that mayinterest potential users. In certain examples, real-world scenery 104may be a setting for a fictionalized event, such as a set of alive-action virtual reality television show or movie.

In some implementations, capturing real-world scenery 104 using camera102 may be optional. For example, a 360-degree image of scenerysurrounding a center point may be completely computer-generated (e.g.,animated) based on models of an imaginary world rather than capturedfrom real- world scenery 104 by camera 102. As such, camera 102 may beomitted in certain examples.

Backend server 108 may be implemented by one or more servers and/or orother computing devices associated with (e.g., provided and/or managedby) a virtual reality media content service provider (e.g., a networkservice provider, a cable service provider, a satellite serviceprovider, an Internet service provider, a provider of virtual realitymobile applications, etc.) and may be configured to provide virtualreality media content to users (e.g., subscribers of a virtual realitymedia content service, users who download or otherwise acquire virtualreality mobile applications, etc.) by way of media player devices 112.To this end, backend server 108 may receive, generate, process, and/ormaintain data representative of virtual reality media content. Forexample, backend server 108 may be configured to receive camera-captureddata (e.g., video data captured by camera 102) representative of a360-degree image of real-world scenery 104 around a center pointcorresponding to camera 102. If the camera-captured data is raw imagedata (e.g., image data captured by each of segment capture cameras 106that has not been combined into a 360-image), backend server 108 mayunwrap, combine (i.e., stitch together), or otherwise process the rawimage data to form the 360-degree image representative of real-worldscenery 104.

Based on the camera-captured data representative of real-world scenery104 (e.g., the 360-degree image), backend server 108 may generate andmaintain an immersive virtual reality world (i.e., data representativeof an immersive virtual reality world that may be experienced by auser). For example, backend server 108 may generate a three-dimensional3D model of the immersive virtual reality world where virtual objectsmay be presented along with projections of real-world scenery 104 to auser experiencing the immersive virtual reality world. To generate theimmersive virtual reality world, backend server 108 may perform videotranscoding, slicing, orchestration, modeling, and/or any otherprocessing that may serve a particular embodiment.

As will be described in more detail below, backend server 108 may manage(e.g., generate, maintain, receive, pass through, etc.) specificationfiles that correspond to different immersive virtual reality experiences(e.g., immersive virtual reality worlds). Exemplary specification fileswill be described in more detail below.

Subsequent to or concurrent with generating one or more immersivevirtual reality worlds associated with one or more virtual reality mediacontent instances (also referred to herein as “virtual reality mediacontent programs”), backend server 108 may provide access to the virtualreality media content programs for users such as subscribers of avirtual reality media content service operated by the virtual realitymedia content provider and/or users who download or otherwise acquirevirtual reality mobile applications provided by the virtual realitymedia content provider. For example, backend server 108 may transmit aspecification file corresponding to an immersive virtual realityexperience to a media player device associated with a user. The mediaplayer device may use the specification file to acquire elementsincluded in the immersive virtual reality experience from backend server108 and/or one or more other systems and/or applications (e.g., microapplications) by way of network 110. This will be described in moredetail below.

Camera 102, backend server 108, and media player devices 112 maycommunicate with one another using any suitable communicationtechnologies, devices, media, and/or protocols supportive of datacommunications, including, but not limited to, socket connections,Ethernet, data bus technologies, data transmission media, communicationdevices, Transmission Control Protocol (“TCP”), Internet Protocol(“IP”), File Transfer Protocol (“FTP”), Telnet, Hypertext TransferProtocol (“HTTP”), HTTPS, Session Initiation Protocol (“SIP”), SimpleObject Access Protocol (“SOAP”), Extensible Mark-up Language (“XML”) andvariations thereof, Real-Time Transport Protocol (“RTP”), User DatagramProtocol (“UDP”), Global System for Mobile Communications (“GSM”)technologies, Code Division Multiple Access (“CDMA”) technologies,Evolution Data Optimized Protocol (“EVDO”), 4G Long Term Evolution(“LTE”), Voice over IP (“VoIP”), Voice over LTE (“VoLTE”), WiMax, TimeDivision Multiple Access (“TDMA”) technologies, Short Message Service(“SMS”), Multimedia Message Service (“MMS”), radio frequency (“RF”)signaling technologies, wireless communication technologies (e.g.,Bluetooth, Wi-Fi, etc.), in-band and out-of- band signalingtechnologies, and other suitable communications technologies.

Network 110 may include any provider-specific network (e.g., a cable orsatellite carrier network or a mobile telephone network), the Internet,wide area network, or any other suitable network. Data may flow betweencamera 102, backend server 108, and media player devices 112 by way ofnetwork 110 using any communication technologies, devices, media, andprotocols as may serve a particular implementation. While only onenetwork 110 is shown to interconnect camera 102, backend server 108, andmedia player devices 112 in FIG. 1, it will be recognized that thesedevices and systems may intercommunicate by way of multipleinterconnected networks as may serve a particular implementation.

Media player devices 112 may be used by users 114 to access andexperience virtual reality media content received from backend server108. To this end, media player devices 112 may each include or beimplemented by any device capable of presenting a field of view of animmersive virtual reality world and detecting user input from a user(e.g., one of users 114) to dynamically change the content within thefield of view as the user experiences the immersive virtual realityworld. For example, media player devices 112 may include or beimplemented by a head-mounted virtual reality device (e.g., a virtualreality gaming device) that includes a head-mounted display screen, apersonal computer device (e.g., a desktop computer, laptop computer,etc.), a mobile or wireless device (e.g., a smartphone, a tablet device,a mobile reader, etc.), or any other device or configuration of devicesthat may serve a particular implementation to facilitate receivingand/or presenting virtual reality media content. Different types ofmedia player devices 112 (e.g., head-mounted virtual reality devices,personal computer devices, mobile devices, etc.) may provide differenttypes of virtual reality experiences having different levels ofimmersiveness for users 114. Additionally, as will be made apparentbelow, methods and systems for minimizing pixel data transmissiondescribed herein may be particularly optimized for certain types (e.g.,form factors) of media player devices 112, such as media player devices112 that include head-mounted display screens (e.g., tethered oruntethered media player devices employing head-mounted virtual realitydevices (i.e., virtual reality headsets), mobile devices mounted to thehead of the user by an apparatus such as a cardboard apparatus, etc.).

Media player devices 112 may be configured to allow users 114 to selectrespective virtual reality media content programs that users 114 maywish to experience on their respective media player devices 112. Incertain examples, media player devices 112 may download virtual realitymedia content programs that users 114 may experience offline (e.g.,without an active connection to backend server 108). In other examples,media player devices 112 may request and receive data streamsrepresentative of virtual reality media content programs that users 114experience while media player devices 112 remain in active communicationwith backend server 108 by way of network 110.

To facilitate users 114 in experiencing virtual reality media content,each of media player devices 112 may include or be associated with atleast one display screen (e.g., a head-mounted display screen built intoa head-mounted virtual reality device or a display screen of a mobiledevice mounted to the head of the user with an apparatus such as acardboard apparatus) upon which particular scenes of an immersivevirtual reality world may be displayed. Media player devices 112 mayalso include software configured to receive, maintain, and/or processdata representative of the immersive virtual reality world to presentthe particular scenes of the immersive virtual reality world on thedisplay screens of the media player devices. For example, media playerdevices 112 may include dedicated, standalone software applications(e.g., mobile applications) configured to process and present datarepresentative of immersive virtual reality worlds on the displays. Inother examples, the software used to present the particular scenes ofthe immersive virtual reality worlds may include non-dedicated softwaresuch as standard web browser applications.

In some examples, media player devices 112 may be configured to operatewithin a particular platform. For example, one of media player devices112 may operate within a platform known as iOS, another one of mediaplayer devices 112 may operate within a platform known as Android, oneof media player devices 112 may operate within a platform known asWindows, etc. However, each media player device 112 may be configured toread and operate in accordance with the same specification fileregardless of the media player devices' respective platforms. In thismanner, the same specification file may be used to facilitatepresentation of an immersive virtual reality experience by way of any ofmedia player devices 112.

FIG. 2 illustrates an exemplary immersive virtual reality experience 200in which a user 202 is presented with an exemplary field of view 204that includes content 206 of an exemplary immersive virtual realityworld 208. User 202 may experience immersive virtual reality world 208(“world 208”) by providing user input to dynamically change field ofview 204 to display whatever content within world 208 that user 202wishes to view. For example, the user input provided by user 202 mayinclude an indication that user 202 wishes to look at content notcurrently presented within field of view 204 (i.e., content of world 208other than content 206). For some types of media player devices 112(e.g., personal computers and/or mobile devices, this user input mayinclude a mouse movement, navigation key input from a keyboard, a swipegesture, or the like. For media player devices 112 incorporatingparticular sensors (e.g., motion, directional, and/or orientationsensors), such as head-mounted virtual reality devices and/or mobiledevices, however, this user input may include a change to an orientationof the display screen of the media player device 112 with respect to atleast one axis of at least two orthogonal axes. For example, the mediaplayer device may be configured to sense changes in orientation of thedisplay screen with respect to an x-axis, a y-axis, and a z-axis thatare all orthogonal to one another. As such, the media player device 112may be configured to detect the change to the orientation of the displayscreen as user 202 experiences world 208, and the dynamic changing ofthe content includes gradually replacing content 206 with other contentof world 208 that is determined to be visible from a viewpoint of user202 within world 208 according to the detected change to the orientationof the display screen with respect to the at least one axis.

To illustrate, FIG. 2 shows that content 206 may include real-worldscenery depicting a beach with palm trees and a surfboard. User 202 mayprovide user input to a media player device by which user 202 isexperiencing world 208 (e.g., one of media player devices 112) toindicate that user 202 wishes to look at content to the left of content206 currently included within field of view 204. For example, user 202may press a left navigation key on a keyboard, perform a swipe gestureto the right, or change the orientation of the display screen withrespect to a y-axis by rotating his or her head to the left whilewearing a head-mounted device. In response, the real-world scenery(i.e., the palm trees, the surfboard, etc.) may scroll to the rightacross field of view 204 to give user 202 a sensation that he or she isturning to look to the left in world 208. As content 206 scrolls off theright side of field of view 204, new content (not explicitly shown inFIG. 2) smoothly scrolls onto the left side of field of view 204. Inthis way, user 202 may provide user input to cause field of view 204 topresent any part of world 208 that user 202 desires.

In FIG. 2, world 208 is illustrated as a semi-sphere, indicating thatuser 202 may look in any direction that is substantially forward,backward, left, right, and/or up. However, if user 202 directs field ofview 204 down, world 208 may not include dynamic and/or real-worldscenery content to be presented within field of view 204. For example,if world 208 includes a dynamic immersive virtual reality world (i.e.,using a 360-degree video image), field of view 204 may present a stillimage representative of the ground of world 208. In other examples,field of view 204 may present nothing (i.e., a black screen), a menu,one or more virtual objects, or any other suitable image that may servea particular implementation. In other examples, world 208 may include anentire 360-degree by 180-degree sphere so that every direction in whichuser 202 may direct field of view 204 is associated with dynamic and/orreal-world scenery content of world 208.

As shown in FIG. 2, world 208 may appear to surround a center point 210associated with user 202. In some embodiments, center point 210 maycorrespond to a location of a camera (e.g., camera 102) used to capturethe content of world 208 (e.g., including content 206). As such, centerpoint 210 may be static or may move through world 208 in a way that user202 is unable to control (e.g., moving through world 208 in a samemanner as camera 102 moved through real-world scenery 104 during thecreation of the virtual reality media content). In other embodiments,user 202 may be able to provide input to modify where center point 210is located within world 208. For example, user 202 may hop from onecenter point to another (e.g., corresponding to where each of aplurality of 360-degree cameras captured 360-degree images) within world208 or cause center point 210 to move continuously within world 208.While center point 210 is illustrated at the feet of user 202 forsimplicity of illustration, it will be understood that center point 210may actually be located at the eye level of user 202.

As mentioned above, different types of media player devices may providedifferent experiences for user 202 by presenting field of view 204 ofworld 208 in different ways, by receiving user input from user 202 indifferent ways, and so forth. To illustrate, FIG. 3 shows exemplarymedia player devices 300 configured to facilitate experiencing of world208 by user 202. Media player devices 300 may correspond to media playerdevices 112, described above in relation to FIG. 1.

As one example, a head-mounted virtual reality device 302 may be mountedon the head of user 202 and arranged so that each of the eyes of user202 sees a distinct display screen 304 (e.g., display screens 304-1 and304-2) within head-mounted virtual reality device 302. In some examples,a single display screen 304 may be presented and shared by both eyes ofuser 202. In other examples, as shown, distinct display screens 304within head-mounted virtual reality device 302 may be configured todisplay slightly different versions of field of view 204 (e.g.,stereoscopic versions of field of view 204 that may be captured by oneor more stereoscopic cameras) to give user 202 the sense that world 208is three-dimensional. Display screens 304 may also be configured todisplay content 206 such that content 206 fills the peripheral vision ofuser 202, providing even more of a sense of realism to user 202.Moreover, head-mounted virtual reality device 302 may include motionsensors (e.g., accelerometers), directional sensors (e.g.,magnetometers), orientation sensors (e.g., gyroscopes), and/or othersuitable sensors to detect natural movements (e.g., head movements) ofuser 202 as user 202 experiences world 208. Thus, user 202 may provideinput indicative of a desire to move field of view 204 in a certaindirection and by a certain amount in world 208 by simply turning his orher head in that direction and by that amount. As such, head-mountedvirtual reality device 302 may provide user 202 with a natural andhands-free experience that does not require any physical console controlto experience the immersive virtual reality world and that may be themost immersive virtual reality experience provided by any type of mediaplayer device.

As another example of a media player device, a personal computer device306 having a display screen 308 (e.g., a monitor) may be used by user202 to experience world 208. Because display screen 308 may not providethe distinct stereoscopic view for each of the user's eyes and/or maynot fill the user's peripheral vision, personal computer device 306 maynot provide the same degree of immersiveness that head-mounted virtualreality device 302 provides. However, personal computer device 306 maybe associated with other advantages such as its ubiquity among casualvirtual reality users that may not be inclined to purchase or use ahead-mounted virtual reality device. In some examples, personal computerdevice 306 may allow a user to experience virtual reality content withina standard web browser so that user 202 may conveniently experienceworld 208 without using special devices or downloading special software.User 202 may provide user input to personal computer device 306 by wayof a keyboard 310 (e.g., using navigation keys on keyboard 310 to movefield of view 204) and/or by way of a mouse 312 (e.g., by moving mouse312 to move field of view 204). In certain examples, a combination ofkeyboard 310 and mouse 312 may be used to provide user input such as bymoving field of view 204 by way of navigation keys on keyboard 310 andclicking or otherwise interacting with objects within world 208 by wayof mouse 312.

As yet another example of a media player device, a mobile device 314having a display screen 316 may be used by user 202 to experience world208. Mobile device 314 may incorporate certain advantages of bothhead-mounted virtual reality devices and personal computer devices toprovide the most versatile type of media player device for experiencingworld 208. Specifically, like personal computer devices, mobile devicesare extremely ubiquitous, potentially providing access to many morepeople than dedicated head-mounted virtual reality devices. However,because many mobile devices are equipped with motion sensors,directional sensors, orientation sensors, etc., mobile devices may alsobe configured to provide user 202 with an immersive experiencecomparable to that provided by head-mounted virtual reality devices. Forexample, mobile device 314 may be configured to divide display screen316 into two versions (e.g., stereoscopic versions) of field of view 204and to present content 206 to fill the peripheral vision of user 202when mobile device 314 is mounted to the head of user 202 using arelatively inexpensive and commercially-available mounting apparatus(e.g., a cardboard apparatus). In other embodiments, mobile device 314may facilitate experiencing world 208 by receiving movement-based userinput at arm's length (i.e., not mounted to the head of user 202 butacting as a hand-held dynamic window for looking around world 208), byreceiving swipe gestures on a touchscreen, or by other techniques thatmay serve a particular embodiment.

While examples of certain media player devices have been described, theexamples are illustrative and not limiting. A media player device mayinclude any suitable device and/or configuration of devices configuredto facilitate receipt and presentation of virtual reality media contentaccording to principles described herein. For example, a media playerdevice may include a tethered device configuration (e.g., a tetheredheadset device) or an untethered device configuration (e.g., a displayscreen untethered from a processing device). As another example, ahead-mounted virtual reality media player device or other media playerdevice may be used in conjunction with a virtual reality controller suchas a wearable controller (e.g., a ring controller) and/or a handheldcontroller.

FIG. 4 illustrates an exemplary virtual reality media provider system400 (“system 400”) configured to facilitate specification file baseddelivery of an immersive virtual reality experience to a user by way ofa media player device. As shown, system 400 may include, withoutlimitation, a management facility 402 and a storage facility 404selectively and communicatively coupled to one another. It will berecognized that although facilities 402 and 404 are shown to be separatefacilities in FIG. 4, facilities 402 and 404 may be combined into fewerfacilities, such as into a single facility, or divided into morefacilities as may serve a particular implementation.

System 400 may be implemented by or may include one or more devicesand/or systems described above in relation to FIG. 1. For example,system 400 may be implemented entirely by backend server 108. In certainembodiments, camera 102, components of network 110, components of mediaplayer devices 112, and/or one or more other computing devices (e.g.,servers and/or computing devices executing micro applications) may alsoserve to implement at least certain components and/or operations ofsystem 400.

Storage facility 404 may maintain virtual reality experience data 406received, generated, managed, maintained, used, and/or transmitted bymanagement facility 402. Virtual reality experience data 406 may includeany data associated with providing an immersive virtual realityexperience for a user by way of a media player device. In some examples,virtual reality experience data 406 may include a specification filethat corresponds to a particular immersive virtual reality experiencethat may be provided to a user by way of a media player device. Storagefacility 404 may maintain additional or alternative data as may serve aparticular implementation.

Management facility 402 may perform one or more operations associatedwith delivering an immersive virtual reality experience to a user by wayof a media player device. For example, management facility 402 maymanage (e.g., receive, generate, maintain, and/or update) aspecification file associated with the immersive virtual realityexperience, transmit the specification file to the media player deviceby way of a network, and provide virtual reality content (e.g., 360degree virtual reality video, etc.) to the media player device by way ofthe network. These and other operations that may be performed bymanagement facility 402 will be described in more detail below.

FIG. 5 illustrates an exemplary media player device 500 that may be usedin accordance with the methods and systems described herein. As shown,media player device 500 may include, without limitation, a managementfacility 502 and a storage facility 504 selectively and communicativelycoupled to one another. It will be recognized that although facilities502 and 504 are shown to be separate facilities in FIG. 5, facilities502 and/or 504 may be combined into a single facility or divided intomore facilities as may serve a particular implementation.

Media player device 500 may be implemented by or may include one or moredevices and/or systems described above in relation to FIG. 1 and/or FIG.3. For example, media player device 500 may be implemented entirely byone of media player devices 112 or media player devices 300. In certainembodiments, camera 102, components of network 110, and/or one or moreother computing devices (e.g., servers) remote from and communicativelycoupled to media player devices 112 by way of network 110 may also serveto implement at least certain components and/or operations of mediaplayer device 500. In some examples, media player device 500 may beconfigured to render (i.e., to prepare for display and to present)virtual reality content included in an immersive virtual realityexperience within a display screen associated with media player device500.

Storage facility 504 may maintain virtual reality experience data 506received (e.g., from system 400), generated, managed, maintained, used,and/or transmitted by management facility 502. Virtual realityexperience data 506 may include any data associated with providing animmersive virtual reality experience for a user by way of media playerdevice 500. In some examples, virtual reality experience data 506 mayinclude a specification file that corresponds to a particular immersivevirtual reality experience that may be provided to a user by way ofmedia player device 500. Storage facility 504 may maintain additional oralternative data as may serve a particular implementation.

Management facility 502 may perform any suitable management operationsfor proper functionality of media player device 500. For example,management facility 502 may acquire and render virtual reality contentincluded in an immersive virtual reality experience and/or receive andoperate in accordance with a specification file that corresponds to animmersive virtual reality experience. These and other operations thatmay be performed by management facility 502 will be described in moredetail below.

Exemplary operations that may be performed by system 400 and mediaplayer device 500 in order for media player device 500 to provide a userwith an immersive virtual reality experience will now be described.

As mentioned, system 400 may maintain a specification file thatcorresponds to the immersive virtual reality experience. Thespecification file includes data that instructs media player device 500how to provide the immersive virtual reality experience to a user.

To illustrate, FIG. 6 shows exemplary components of a specification file600 that may be maintained by system 400 and that may correspond to animmersive virtual reality experience. As shown, specification file 600may include data that defines an element 602, an event 604, and abehavior 606. Specification file 600 may further include data thatassociates event 604 with element 602 (this association is representedby arrow 608) and data that associates behavior 606 with event 604 (thisassociation is represented by arrow 610). For example, as will beillustrated in more detail below, event 604 may be associated withelement 602 by including data that identifies event 604 within an eventlist (shown in FIG. 6 as “<event list>”) included within the data thatdefines element 602. Likewise, behavior 606 may be associated with event604 by including data that identifies behavior 606 within a behaviorlist (shown in FIG. 6 as “<behavior list>”) included within the datathat defines event 604.

While specification file 600 shows a single element, a single eventassociated with the element, and a single behavior associated with theevent, it will be recognized that specification file 600 may define anynumber of elements, events, and behaviors, that a particular element maybe associated with any number of events within specification file 600,and that a particular event may be associated with any number ofbehaviors within specification file 600.

Specification file 600 may adhere to a data format that is readable by aplurality of different media player devices operation within a pluralityof different platforms. For example, specification file 600 may be atext-based file (e.g., a JavaScript Object Notation (“JSON”) file) thatis readable by any media player device that operates within theplurality of different platforms. While specification file 600 mayadhere to any suitable data format, the examples provided herein areshown as being text-based (e.g., a JSON format, an Extensible MarkupLanguage (“XML”) format, a HyperText Markup Language (“HTML”) format,etc.).

Examples of element 602, event 604, and behavior 606 will now beprovided.

Element 602 may include a component or object included in the immersivevirtual reality experience. For example, element 602 may include a 360degree virtual reality video, a 3D object, a 2D image, text, andadvertisement target (i.e., a location within the immersive virtualreality experience at which an advertisement is to be presented), etc.Element 602 may be defined within specification file 600 in any suitablemanner. For example, element 602 may be defined within specificationfile 600 by specifying values for a plurality of predetermined fieldsassociated with element 602. One such field represents a link (e.g., auniform resource locator (“URL”)) for element 602. The link may be usedby media player device 500 to acquire (e.g., download) element 602 forinclusion in the immersive virtual reality experience. Other fields thatmay be associated with element 602 include, but are not limited to, atitle field that represents a name of the element 602, location fieldsthat identify a spatial location within a field of view of the immersivevirtual reality experience at which the element 602 is to be displayed,and an event field that identifies an event (e.g., event 604) that isassociated with element 602. Various examples of elements and fieldsthat may be used to define the elements will be provided below.

Event 604 may be defined by one or more conditions that, when satisfied,indicate an occurrence of the event. For example, Table 1, shown below,lists exemplary events that may be defined and used within specificationfile 600 and that may be associated with element 602. Additional oralternative events may be defined and used within specification file 600as may serve a particular implementation.

TABLE 1 Event Description OnLoadEvent Occurs when associated element isloaded (e.g., when a 360 degree virtual reality video is loaded by mediaplayer device 500) OnTimeInVideo Occurs when an associated video element(e.g., a 360 degree virtual reality video) plays for a predeterminedamount of time OnShowEvent Occurs when associated element is shownwithin the immersive virtual reality experience OnHideEvent Occurs whenassociated element is hidden within the immersive virtual realityexperience OnGazeEvent Occurs when user gazes at associated element fora definable amount of time OnClickEvent Occurs when user clicks orselects associated element

Behavior 606 may be defined by a set of one or more instructions thatmedia player device 500 performs with respect to element 602 in responseto an occurrence of event 604. Table 2, shown below, lists exemplarybehaviors that may be defined and used within specification file 600 andthat may be associated with event 604 and element 602. Additional oralternative behaviors may be defined and used within specification file600 as may serve a particular implementation.

TABLE 2 Behavior Description ShowShowable Shows a particular objectwithin the immersive virtual reality experience in accordance withdefinable rules HideShowable Hides a particular object within theimmersive virtual reality experience in accordance with definable rulesToggleShowable Toggles between showing one or more objects within theimmersive virtual reality experience in accordance with definable rulesShowAd Shows a particular advertisement within the immersive virtualreality experience in response to an occurrence of behavior's associatedevent HideAd Hides a particular advertisement within the immersivevirtual reality experience in response to an occurrence of behavior'sassociated event ReportAdClicked Reports to a definable entity when anadvertisement presented within the immersive virtual reality experienceis clicked on by a user ReportAdGazed Reports to a definable entity whenan advertisement presented within the immersive virtual realityexperience is gazed at by a user for a definable amount of time

Various examples of elements that may be included within specificationfile 600 and fields that may be used to define the elements (and alsodefine associations between the elements and events and behaviors) willnow be provided. It will be recognized that the methods and systemsdescribed herein may provide for additional or alternative elements asmay serve a particular implementation. In some examples, system 400populates data for each of the fields shown in the following examples.This may occur automatically, in response to input provided by a user(e.g., a virtual reality content creator), and/or in any other manner.

Table 3, shown below, shows exemplary fields that may be used to definean element entitled “VR 360 Player”, which refers to a 360 degreevirtual reality video that may be presented to the user by way of mediaplayer device 500 during the immersive virtual reality experience.

TABLE 3 Field Type uniqueName string url string (url) cameraType string(enum) domeOrientation string (direction) cameraPovAngle float (degrees)onTimeInVideoList Collection <OnTimeInVideo>

A brief description of each of the fields shown in Table 3 will now beprovided.

The field “uniqueName” may be populated with a name of the elemententitled “VR 360 Player”. This name may be referenced by other portionsof specification file 600 in order refer to this particular element.

The field “url” may be populated with a link (e.g., a URL) to theelement entitled “VR 360 Player”. This link may be used by media playerdevice 500 to acquire (e.g., download by way of network 110) the 360degree virtual reality video from a source (e.g., a server thatimplements system 400 and/or a server separate from system 400) forpresentation to the user.

The field “cameraType” specifies a particular camera type that was usedto capture the 360 degree virtual reality video. For example, field“cameraType” may be populated with one of the following supported cameratypes: SP360, FISHEYE, EQUIRECTANGULAR, EQUIRECTANGULAR-3D, etc.

The field “domeOrientation” may be populated with data that describesthe orientation of the camera as the camera captures the 360 degreevirtual reality video. For example, this field may be populated with oneof the following options: up, down, sideForward, sideDown, SideBackward,or sideUp.

The field “cameraPovAngle” may be populated with the initial orientationof the camera in the xy plane as the camera captures the 360 degreevirtual reality video. This allows the viewer to be oriented to aninitial direction within the 360 degree virtual reality video.

The field “onTimeInVideoList” may be populated with one or more events,such as one or more instances of the “OnTimeInVideo” event describedabove. Behaviors associated with the one or more events may also beindicated in this field. In this manner, the field “onTimeInVideoList”may be used to associate both an event and a behavior with the element.

FIG. 7 illustrates an exemplary code implementation 702 of data thatdefines the element entitled “VR 360 Player” described above inconnection with Table 3 and that may be included in specification file600. Code implementation 702 may adhere to a JSON format or any otherformat as may serve a particular implementation.

Table 4, shown below, shows exemplary fields that may be used to definean element entitled “Ad Target”, which refers to an object and/orlocation within the immersive virtual reality experience that isassociated with a presentation of an advertisement within the immersivevirtual reality world. For example, the ad target may be a 3D object(e.g., a 3D panel, etc.) or a 2D image (e.g., a banner, etc.).

TABLE 4 Field Type target string relativeToName string onClickOnClickEvent onGaze OnGazeEvent

A brief description of each of the fields shown in Table 4 will now beprovided.

The field “target” may be populated with an identifier that identifiesthe ad target. For example, this may be an image URL, an advertisementDCN name, etc.

The field “relativeToName” may be populated with a name of an objectrelative to which the advertisement will be displayed. For example, thisobject may be a focus point icon that indicates a focus point of theuser as the user experiences the immersive virtual reality experience.

The field “onClick” may be populated with data that defines an “onClick”event that is associated with the “Ad Target” element. A behaviorassociated with the “onClick” event and that may be performed inresponse to a user clicking on the “Ad Target” element may also bespecified in this field.

The field “onGaze” may be populated with data that defines an “onGaze”event that is associated with the “Ad Target” element. A behaviorassociated with the “onGaze” event and that may be performed in responseto a user gazing upon the “Ad Target” element for a definable amount oftime may also be specified in this field.

FIG. 8 illustrates an exemplary code implementation 802 of data thatdefines the element entitled “Ad Target” described above in connectionwith Table 4 and that may be included in specification file 600. Codeimplementation 802 may adhere to a JSON format or any other format asmay serve a particular implementation.

Table 5, shown below, shows exemplary fields that may be used to definean element entitled “Focus Point Icon”, which refers to an object thatidentifies a focus point of a user as the user experiences the immersivevirtual reality experience.

TABLE 5 Field Type angleX float (degrees) angleY float (degrees) depthZfloat icon string (URL) iconClicked string (URL)

A brief description of each of the fields shown in Table 5 will now beprovided.

The fields “angleX” and “angleY” may be populated with location datathat specifies a location of the focus point icon within a 360 degreedome environment of the immersive virtual reality experience.

The field “depthZ” may be populated with data representative of a depthof the focus point icon within a 360 degree dome environment of theimmersive virtual reality experience.

The field “icon” may be populated with a source location (e.g., an imageURL or local file path) for the focus point icon.

The field “iconClicked” may be populated with a source location (e.g.,an image URL or local file path) for an image that represents a clickedfocus point icon.

Additional fields may be used to specify events and behaviors associatedwith the “Focus Point Icon” element.

FIG. 9 illustrates an exemplary code implementation 902 of data thatdefines the element entitled “Focus Point Icon” described above inconnection with Table 5 and that may be included in specification file600. Code implementation 902 may adhere to a JSON format or any otherformat as may serve a particular implementation.

Table 6, shown below, shows exemplary fields that may be used to definean element entitled “Popup Image”, which refers to a popup image thatmay be displayed relative to an object (e.g., a focus point icon) withinthe immersive virtual reality experience.

TABLE 6 Field Type imageURL url headerText string bodyText stringrelativeToName string popupOffsetX float (pixels) popupOffsetY float(pixels) onClick OnClickEvent onGaze OnGazeEvent

A brief description of each of the fields shown in Table 6 will now beprovided.

The field “imageURL” may be populated with a link (e.g., a URL) of thepopup image that is to be displayed.

The field “headerText” may be populated with header text that is to bedisplayed together with the popup image.

The field “bodyText” may be populated with body text that is to bedisplayed together with the popup image.

The field “relativeToName” may be populated with a name of an objectrelative to which the popup image will be displayed. For example, thisobject may be a focus point icon that indicates a focus point of theuser as the user experiences the immersive virtual reality experience.

The fields “popupOffsetX” and “popupOffsetY” may be populated withlocation data that indicates an offset (e.g., in pixels) relative to thecenter of the “relativeToName” object.

The field “onClick” may be populated with data that defines an “onClick”event that is associated with the popup image. A behavior associatedwith the “onClick” event and that may be performed in response to a userclicking on the popup image may also be specified in this field.

The field “onGaze” may be populated with data that defines an “onGaze”event that is associated with the popup image. A behavior associatedwith the “onGaze” event and that may be performed in response to a usergazing upon the popup image for a definable amount of time may also bespecified in this field.

FIG. 10 illustrates an exemplary code implementation 1002 of data thatdefines the element entitled “Popup Image” described above in connectionwith Table 6 and that may be included in specification file 600. Codeimplementation 1002 may adhere to a JSON format or any other format asmay serve a particular implementation.

Table 7, shown below, shows exemplary fields that may be used to definean element entitled “Popup Text”, which refers to popup text that may bedisplayed relative to an object (e.g., a focus point icon) within theimmersive virtual reality experience.

TABLE 7 Field Type headerText string bodyText string relativeToNamestring onClick OnClickEvent onGaze OnGazeEvent

A brief description of each of the fields shown in Table 7 will now beprovided.

The field “headerText” may be populated with header text that is to bedisplayed within the popup text.

The field “bodyText” may be populated with body text that is to bedisplayed within the popup text.

The field “relativeToName” may be populated with a name of an objectrelative to which the popup text will be displayed. For example, thisobject may be a focus point icon that indicates a focus point of theuser as the user experiences the immersive virtual reality experience.

The field “onClick” may be populated with data that defines an “onClick”event that is associated with the popup text. A behavior associated withthe “onClick” event and that may be performed in response to a userclicking on the popup text may also be specified in this field.

The field “onGaze” may be populated with data that defines an “onGaze”event that is associated with the popup text. A behavior associated withthe “onGaze” event and that may be performed in response to a usergazing upon the popup text for a definable amount of time may also bespecified in this field.

FIG. 11 illustrates an exemplary code implementation 1102 of data thatdefines the element entitled “Popup Text” described above in connectionwith Table 7 and that may be included in specification file 600. Codeimplementation 1102 may adhere to a JSON format or any other format asmay serve a particular implementation.

It will be recognized that additional or alternative elements may bedefined and included in specification file 600. For example, a “sound”element, which may be configured to present sound (e.g., an audiorecording) to the user while the user experiences the immersive virtualreality experience may be defined and included in specification file600, as may many other types of elements.

In some examples, the events included in specification file 600 may beselected from an event library of pre-established and definable events.Likewise, the behaviors included in specification file 600 may beselected from a behavior library of pre-established and definablebehaviors. The event library and the behavior library may be maintainedby system 400. By so doing, system 400 may ensure that media playerdevice 500 (and other media player devices that access the specificationfile 600) is capable of detecting each event included in the eventlibrary and of performing each behavior included in the behaviorlibrary.

For example, prior to transmitting specification file 600 to mediaplayer device 500, system 400 may configure media player device 500 tobe capable of detecting each event included in the event library and ofperforming each behavior included in the behavior library. This may beperformed in any suitable manner. For example, system 400 may providemedia player device 500 with software (e.g., in the form of a newsoftware install or a software update) that, when executed by mediaplayer device 500, may configure a codec included in media player device500 to be capable of detecting each event included in the event libraryand of performing each behavior included in the behavior library. Onceconfigured in this manner, media player device 500 may recognize andappropriately process data that defines each event included in the eventlibrary and each behavior included in the behavior library.

System 400 may update event library and/or behavior library with newevents and/or behaviors in any suitable manner. For example, system 400may receive a request to create a new behavior that combinesfunctionality of a subset of behaviors included in the behavior library.To illustrate, a particular virtual reality content creator may findthat he or she associates the same three behaviors with a particularevent and element on a repeated basis. This virtual reality contentcreator may accordingly submit a request to system 400 to combine thethree behaviors into a single new behavior so that the virtual realitycontent creator can be more efficient in the way the virtual realitycontent creator creates virtual content. In response, system 400 maycreate the new behavior (e.g., automatically or based on user input) andadd the new behavior to the behavior library. Because the new behavioris a combination of three behaviors already included in the behaviorlibrary, media player device 500 may already be capable of performingthe new behavior (i.e., without being updated by system 500).

As another example, system 400 may receive a request to create a newbehavior that is not based on a combination of a subset of behaviorsincluded in the behavior library. In response, system 400 may create thenew behavior and add the new behavior to the behavior library. Becausethis new behavior is not based on a combination of behaviors included inthe behavior library, system 400 may reconfigure media player device 500to be capable of performing the new behavior (e.g., by pushing an updateto media player device 500)

In some examples, system 400 may generate specification file 600 basedon input provided by a virtual reality content creator (e.g., prior tothe specification file 600 being transmitted to media player device500). For example, a virtual reality content creator may utilize agraphical user interface provided by system 400 to identify objects thatare to be elements linked to events and behaviors in specification file600. In response, system 400 may generate specification file 600accordingly.

FIG. 12 illustrates an exemplary network-based virtual reality mediadelivery configuration 1200 of system 400 and media player device 500.Specifically, as shown in configuration 1200, media player device 500 isbeing used by user 202 (e.g., to experience an immersive virtual realityexperience) and is communicatively coupled to system 400 via a network1202. Network 1202 may be the same or similar to network 110, describedabove in relation to FIG. 1.

As shown, to facilitate an immersive virtual reality experience for user202, media player device 500 may transmit an immersive virtual realityexperience request (“request”) to system 400 by way of network 1202.This request is represented by arrow 1204. In response to the request,system 400 may transmit a specification file corresponding to theimmersive virtual reality experience to media player device 500. Thistransmission of the specification file is represented by arrow 1206.

System 400 may transmit the specification file to media player device500 in any suitable manner. For example, system 400 may transmit thespecification file in the form of a text-based file (e.g., a JSON file)to media player device 500. As another example, system 400 may transmitthe specification file in the form of binary data encoded into a videostream (or any other type of data stream).

Media player device 500 may use the specification file to provide theuser with the immersive virtual reality experience. For example, mediaplayer device 500 may use links specified within the specification fileto acquire and present elements defined in the specification file,detect an occurrence of one or more events that are associated with theelements in the specification file, and perform one or more behaviorsthat are associated with the one or more events in the specificationfile.

In some examples, after the specification file has already beentransmitted by system 400 to media player device 500, system 500 maydetect an update that is to be made to the specification file that willaffect the immersive virtual reality experience being provided by mediaplayer device 500 at a future point in time. For example, while mediaplayer device 500 is using the specification file to provide theimmersive virtual reality experience to a user, a virtual realitycontent creator may provide a request for system 400 to update thespecification file to include an additional or alternative element,event, and/or behavior. In response, system 400 may dynamically update aversion of the specification file that is maintained by system 400.System 400 may also dynamically update the version of specification filebeing used by media player device 500 with the requested update (e.g.,by transmitting a command to media player device 500 for device toupdate the specification file being used by media player device 500 withthe requested update). This dynamic update may be performed while mediaplayer device 500 is presenting the immersive virtual reality experienceto user 202 in a manner that does not interfere with the presentation ofthe immersive virtual reality experience to user 202.

FIG. 13 illustrates an exemplary method 1300 for specification filebased delivery of an immersive virtual reality experience. While FIG. 13illustrates exemplary operations according to one embodiment, otherembodiments may omit, add to, reorder, and/or modify any of theoperations shown in FIG. 13. One or more of the operations shown in FIG.13 may be performed by system 400 and/or any implementation thereof.

In operation 1302, a virtual reality media provider system receives,from a media player device by way of a network, a request for the mediaplayer device to provide a user with an immersive virtual realityexperience. Operation 1302 may be performed in any of the ways describedherein.

In operation 1304, the virtual reality media provider system transmits,to the media player device by way of the network and in response to therequest, a specification file corresponding to the immersive virtualreality experience. As described herein, the specification file includesdata that defines a plurality of elements included in the immersivevirtual reality experience (e.g., by providing a plurality of links foruse by the media player device in acquiring, by way of the network, theplurality of elements while providing the user with the immersivevirtual reality experience). The specification file also associates anevent with a particular element included in the plurality of elements,and associates a behavior with the event that is associated with theparticular element. The behavior may be configured to be performed(e.g., by the media player device) with respect to the particularelement in response to an occurrence of the event within the immersivevirtual reality experience. Operation 1304 may be performed in any ofthe ways described herein.

FIG. 14 illustrates another exemplary method 1400 for specification filebased delivery of an immersive virtual reality experience. While FIG. 14illustrates exemplary operations according to one embodiment, otherembodiments may omit, add to, reorder, and/or modify any of theoperations shown in FIG. 14. One or more of the operations shown in FIG.14 may be performed by media player device 500 and/or any implementationthereof.

In operation 1402, a media player device transmits a request to avirtual reality media provider system by way of a network for the mediaplayer device to provide a user with an immersive virtual realityexperience. Operation 1402 may be performed in any of the ways describedherein.

In operation 1404, the media player device receives, from the virtualreality media provider system in response to the request, aspecification file corresponding to the immersive virtual realityexperience. As described herein, the specification file includes datathat defines a plurality of elements included in the immersive virtualreality experience (e.g., by providing a plurality of links for use bythe media player device in acquiring, by way of the network, theplurality of elements while providing the user with the immersivevirtual reality experience). The specification file also associates anevent with a particular element included in the plurality of elements,and associates a behavior with the event that is associated with theparticular element. The behavior may be configured to be performed(e.g., by the media player device) with respect to the particularelement in response to an occurrence of the event within the immersivevirtual reality experience. Operation 1404 may be performed in any ofthe ways described herein.

In operation 1406, the media player device uses the specification fileto provide the user with the immersive virtual reality experience. Forexample, the media player device may acquire, based on a link includedin the plurality of links and by way of the network, the particularelement, detect the occurrence of the event that is associated with theparticular element within the specification file, and perform, inresponse to detecting the occurrence of the event, the behavior that isassociated with the event in the specification file. Operation 1406 maybe performed in any of the ways described herein.

In certain embodiments, one or more of the systems, components, and/orprocesses described herein may be implemented and/or performed by one ormore appropriately configured computing devices. To this end, one ormore of the systems and/or components described above may include or beimplemented by any computer hardware and/or computer-implementedinstructions (e.g., software) embodied on at least one non-transitorycomputer-readable medium configured to perform one or more of theprocesses described herein. In particular, system components may beimplemented on one physical computing device or may be implemented onmore than one physical computing device. Accordingly, system componentsmay include any number of computing devices, and may employ any of anumber of computer operating systems.

In certain embodiments, one or more of the processes described hereinmay be implemented at least in part as instructions embodied in anon-transitory computer-readable medium and executable by one or morecomputing devices. In general, a processor (e.g., a microprocessor)receives instructions, from a non-transitory computer-readable medium,(e.g., a memory, etc.), and executes those instructions, therebyperforming one or more processes, including one or more of the processesdescribed herein. Such instructions may be stored and/or transmittedusing any of a variety of known computer-readable media.

A computer-readable medium (also referred to as a processor- readablemedium) includes any non-transitory medium that participates inproviding data (e.g., instructions) that may be read by a computer(e.g., by a processor of a computer). Such a medium may take many forms,including, but not limited to, non-volatile media, and/or volatilemedia. Non-volatile media may include, for example, optical or magneticdisks and other persistent memory. Volatile media may include, forexample, dynamic random access memory (“DRAM”), which typicallyconstitutes a main memory. Common forms of computer-readable mediainclude, for example, a disk, hard disk, magnetic tape, any othermagnetic medium, a compact disc read-only memory (“CD-ROM”), a digitalvideo disc (“DVD”), any other optical medium, random access memory(“RAM”), programmable read-only memory (“PROM”), electrically erasableprogrammable read-only memory (“EPROM”), FLASH-EEPROM, any other memorychip or cartridge, or any other tangible medium from which a computercan read.

FIG. 15 illustrates an exemplary computing device 1500 that may bespecifically configured to perform one or more of the processesdescribed herein. As shown in FIG. 15, computing device 1500 may includea communication interface 1502, a processor 1504, a storage device 1506,and an input/output (“I/O”) module 1508 communicatively connected via acommunication infrastructure 1510. While an exemplary computing device1500 is shown in FIG. 15, the components illustrated in FIG. 15 are notintended to be limiting. Additional or alternative components may beused in other embodiments. Components of computing device 1500 shown inFIG. 15 will now be described in additional detail.

Communication interface 1502 may be configured to communicate with oneor more computing devices. Examples of communication interface 1502include, without limitation, a wired network interface (such as anetwork interface card), a wireless network interface (such as awireless network interface card), a modem, an audio/video connection,and any other suitable interface.

Processor 1504 generally represents any type or form of processing unitcapable of processing data or interpreting, executing, and/or directingexecution of one or more of the instructions, processes, and/oroperations described herein. Processor 1504 may direct execution ofoperations in accordance with one or more applications 1512 or othercomputer-executable instructions such as may be stored in storage device1506 or another computer- readable medium.

Storage device 1506 may include one or more data storage media, devices,or configurations and may employ any type, form, and combination of datastorage media and/or device. For example, storage device 1506 mayinclude, but is not limited to, a hard drive, network drive, flashdrive, magnetic disc, optical disc, RAM, dynamic RAM, other non-volatileand/or volatile data storage units, or a combination or sub-combinationthereof. Electronic data, including data described herein, may betemporarily and/or permanently stored in storage device 1506. Forexample, data representative of one or more executable applications 1512configured to direct processor 1504 to perform any of the operationsdescribed herein may be stored within storage device 1506. In someexamples, data may be arranged in one or more databases residing withinstorage device 1506.

I/O module 1508 may include one or more I/O modules configured toreceive user input and provide user output. One or more I/O modules maybe used to receive input for a single virtual reality experience. I/Omodule 1508 may include any hardware, firmware, software, or combinationthereof supportive of input and output capabilities. For example, I/Omodule 1508 may include hardware and/or software for capturing userinput, including, but not limited to, a keyboard or keypad, atouchscreen component (e.g., touchscreen display), a receiver (e.g., anRF or infrared receiver), motion sensors, and/or one or more inputbuttons.

I/O module 1508 may include one or more devices for presenting output toa user, including, but not limited to, a graphics engine, a display(e.g., a display screen), one or more output drivers (e.g., displaydrivers), one or more audio speakers, and one or more audio drivers. Incertain embodiments, I/O module 1508 is configured to provide graphicaldata to a display for presentation to a user. The graphical data may berepresentative of one or more graphical user interfaces and/or any othergraphical content as may serve a particular implementation.

In some examples, any of the facilities described herein may beimplemented by or within one or more components of computing device1500. For example, one or more applications 1512 residing within storagedevice 1506 may be configured to direct processor 1504 to perform one ormore processes or functions associated with management facility 402 ofsystem 400 and/or management facility 502 of media player device 500.Likewise, storage facility 404 of system 400 and/or storage facility 504of media player device 500 may be implemented by or within storagedevice 1506.

To the extent the aforementioned embodiments collect, store, and/oremploy personal information provided by individuals, it should beunderstood that such information shall be used in accordance with allapplicable laws concerning protection of personal information.Additionally, the collection, storage, and use of such information maybe subject to consent of the individual to such activity, for example,through well known “opt-in” or “opt-out” processes as may be appropriatefor the situation and type of information. Storage and use of personalinformation may be in an appropriately secure manner reflective of thetype of information, for example, through various encryption andanonymization techniques for particularly sensitive information.

In the preceding description, various exemplary embodiments have beendescribed with reference to the accompanying drawings. It will, however,be evident that various modifications and changes may be made thereto,and additional embodiments may be implemented, without departing fromthe scope of the invention as set forth in the claims that follow. Forexample, certain features of one embodiment described herein may becombined with or substituted for features of another embodimentdescribed herein. The description and drawings are accordingly to beregarded in an illustrative rather than a restrictive sense.

What is claimed is:
 1. A method comprising: receiving, by a virtualreality media provider system from a media player device by way of anetwork, a request for the media player device to provide a user with animmersive virtual reality experience; and transmitting, by the virtualreality media provider system to the media player device by way of thenetwork and in response to the request, a specification filecorresponding to the immersive virtual reality experience, thespecification file comprising data that defines a plurality of elementsincluded in the immersive virtual reality experience by providing aplurality of links for use by the media player device in acquiring, byway of the network, the plurality of elements while providing the userwith the immersive virtual reality experience, associates an event witha particular element included in the plurality of elements, andassociates a behavior with the event that is associated with theparticular element, the behavior configured to be performed with respectto the particular element in response to an occurrence of the eventwithin the immersive virtual reality experience.
 2. The method of claim1, wherein the specification file is readable by a plurality ofdifferent media player devices operating within a plurality of differentplatforms.
 3. The method of claim 1, further comprising generating, bythe virtual reality media provider system based on input provided by avirtual reality content creator, the specification file prior totransmitting the specification file to the media player device.
 4. Themethod of claim 1, further comprising: detecting, by the virtual realitymedia provider system while the media player device is providing theimmersive virtual reality experience, an update that is to be made tothe specification file that affects the immersive virtual realityexperience being provided by the media player device at a future pointin time; and dynamically updating, by the virtual reality media providersystem in response to the detecting of the update and while the mediaplayer device is providing the immersive virtual reality experience, thespecification file used by the media player device with the update. 5.The method of claim 1, wherein the transmitting of the specificationfile to the media player device comprises transmitting a text-based fileto the media player device.
 6. The method of claim 1, wherein thetransmitting of the specification file comprises transmitting thespecification file as binary data encoded into a video stream.
 7. Themethod of claim 1, further comprising: maintaining, by the virtualreality media provider system, a behavior library of pre-established anddefinable behaviors; and configuring, by the virtual reality mediaprovider system, the media player device to be capable of performingeach behavior included in the behavior library; wherein the behaviorthat is associated with the event that is associated with the particularelement is included in the behavior library.
 8. The method of claim 7,further comprising: receiving, by the virtual reality media providersystem, a request to create a new behavior that combines functionalityof a subset of behaviors included in the behavior library; creating, bythe virtual reality media provider system in response to the request,the new behavior; and adding, by the virtual reality media providersystem, the new behavior to the behavior library.
 9. The method of claim7, further comprising: receiving, by the virtual reality media providersystem, a request to create a new behavior that is not based on acombination of a subset of behaviors included in the behavior library;creating, by the virtual reality media provider system in response tothe request, the new behavior; adding, by the virtual reality mediaprovider system, the new behavior to the behavior library; andreconfiguring, by the virtual reality media provider system, the mediaplayer device to be further capable of performing the new behavior. 10.The method of claim 1, further comprising: maintaining, by the virtualreality media provider system, an event library of pre-established anddefinable events; and configuring, by the virtual reality media providersystem, the media player device to be capable of detecting each eventincluded in the event library; wherein the event that is associated withthe particular element is included in the event library.
 11. The methodof claim 1, embodied as computer-executable instructions on at least onenon-transitory computer-readable medium.
 12. A method comprising:transmitting, by a media player device, a request to a virtual realitymedia provider system by way of a network for the media player device toprovide a user with an immersive virtual reality experience; receiving,by the media player device from the virtual reality media providersystem in response to the request, a specification file corresponding tothe immersive virtual reality experience, the specification filecomprising data that defines a plurality of elements included in theimmersive virtual reality experience by providing a plurality of linksfor use by the media player device in acquiring, by way of the network,the plurality of elements while providing the user with the immersivevirtual reality experience, associates an event with a particularelement included in the plurality of elements, and associates a behaviorwith the event that is associated with the particular element, thebehavior configured to be performed with respect to the particularelement in response to an occurrence of the event within the immersivevirtual reality experience; and using, by the media player device, thespecification file to provide the user with the immersive virtualreality experience by acquiring, based on a link included in theplurality of links and by way of the network, the particular element,detecting the occurrence of the event that is associated with theparticular element within the specification file, and performing, inresponse to the detecting of the occurrence of the event, the behaviorthat is associated with the event in the specification file.
 13. Themethod of claim 12, embodied as computer-executable instructions on atleast one non-transitory computer-readable medium.
 14. A systemcomprising: at least one physical computing device that: receives, froma media player device by way of a network, a request for the mediaplayer device to provide a user with an immersive virtual realityexperience; and transmits, to the media player device by way of thenetwork and in response to the request, a specification filecorresponding to the immersive virtual reality experience, thespecification file comprising data that defines a plurality of elementsincluded in the immersive virtual reality experience by providing aplurality of links for use by the media player device in acquiring, byway of the network, the plurality of elements while providing the userwith the immersive virtual reality experience, associates an event witha particular element included in the plurality of elements, andassociates a behavior with the event that is associated with theparticular element, the behavior configured to be performed with respectto the particular element in response to an occurrence of the eventwithin the immersive virtual reality experience.
 15. The system of claim14, wherein the specification file adheres to a data input format thatis readable by a plurality of different media player devices operatingwithin a plurality of different platforms.
 16. The system of claim 14,wherein the at least one physical computing device: detects, while themedia player device is providing the immersive virtual realityexperience, an update that is to be made to the specification file thatwill affect the immersive virtual reality experience being provided bythe media player device at a future point in time; and dynamicallyupdates, in response to the detection of the update and while the mediaplayer device is providing the immersive virtual reality experience, thespecification file used by the media player device with the update. 17.The system of claim 14, wherein the at least one physical computingdevice transmits the specification file to the media player device by atleast one of transmitting a text-based file to the media player deviceand transmitting the specification file as binary data encoded into avideo stream.
 18. The system of claim 14, wherein the at least onephysical computing device: maintains a behavior library ofpre-established and definable behaviors; and configures the media playerdevice to be capable of performing each behavior included in thebehavior library; wherein the behavior that is associated with the eventthat is associated with the particular element is included in thebehavior library.
 19. The system of claim 18, wherein the at least onephysical computing device: receives a request to create a new behaviorthat combines functionality of a subset of behaviors included in thebehavior library; creates, in response to the request, the new behavior;and adds the new behavior to the behavior library.
 20. The system ofclaim 18, wherein the at least one physical computing device: receives arequest to create a new behavior that is not based on a combination of asubset of behaviors included in the behavior library; creates, inresponse to the request, the new behavior; adds the new behavior to thebehavior library; and reconfigures the media player device to be furthercapable of performing the new behavior.